| 木质素酚醛树脂/丁苯橡胶复合材料的研究 |
| Study on Lignin-Phenol-Formaldehyde/SBR Composites |
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| DOI： |
| 中文关键词: 木质素酚醛树脂 丁苯橡胶 复合材料 物理性能 热稳定性 |
| 英文关键词: lignin-phenol-formaldehyde SBR composite physical property thermal stability |
| 基金项目:湖南师范大学潇湘学者启动资金资助项目（化050613） |
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| 中文摘要: |
| 以木质素部分替代苯酚合成木质素酚醛树脂（LPF），制备LPF/丁苯橡胶（SBR）复合材料，并对其形态结构、物理性能和热稳定性进行研究。结果表明：LPF（木质素/苯酚用量比30/70）/SBR复合材料出现相分离，当LPF用量大于25份时，LPF与SBR相互穿插，形成互穿网络结构。加入LPF可以改善复合材料的物理性能，当LPF中木质素/苯酚用量比为30/70、LPF用量为25份时，LPF/SBR复合材料的综合性能最佳。与SBR硫化胶相比，LPF/SBR复合材料质量损失率为5%时的温度降低，质量损失率为50%时的温度升高，质量保持率增大。 |
| 英文摘要: |
| In this paper，the lignin-phenol-formaldehyde （LPF） was synthesized and the LPF/SBR composites were prepared.The morphology，physical properties and thermal stability of LPF/SBR composites were investigated.The experimental results showed the phase separated structure in the LPF/SBR composites.When the addition level of LPF（lignin/phenol blend ratio at 30/70） was more than 25 phr，SBR and LPF were penetrated with each other，and an interpenetrating network structure was formed.The addition of LPF improved the physical properties of composites，and when the lignin/phenol blend ratio was 30/70，and addition level of LPF was 25 phr，the comprehensive properties of composite were the best.The thermal stability of the composites was evaluated by thermogravimetric analysis.Compared with SBR vulcanizate，the temperature with 5% mass loss rate of the composites decreased，the temperature with 50% mass loss rate of the composites increased，and the final mass residue increased. |
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